home history news Where to Buy web store contact us



CD Front Derailleur

Designed specifically for Compact Road double cranks like FSA's or IRD Mosaic C. Shimano front derailleurs are designed with only a 15t capacity. That is one tooth short of being optimized for 50-34t. The IRD has a broader range and its chain guide profiles are designed to work better with the smaller chainrings. Try them with 48-36t or other CX combos, too.
• Braze-on only, but it will attach to a Shimano adapter clamp.
• Bottom pull.
• 88 grams.



Alpina Front Derailleur
Same performance level as the CD, but designed for triples. Will work with standard road triple cranks, but it is optimized for smaller rings such as 48-36-24t or 50-36-30t.

• Braze-on style, but this includes an adapter clamp for 28.6, 31.8 or 34.9mm.
• Two models:
Alpina-d is designed to work better with Shimano's drop bar/STI shifters.
Alpina-f is designed to work better with Shimano's flat bar road shifters.